基于XML的文件系统与多数据库系统的集成

文件系统与多数据库系统集成是解决多个分布的异构数据源数据共享的必由之路。本文在对文件系统与多数据库系统集成中的问题进行分析的基础上，提出利用可扩展置标语言XML来实现文件系统与多数据库系统集成，并且提出了一种面向XML Schema的公共数据模型XIDM。XIDM能较好描述无结构化和半结构化数据的数据，建立在一系列XML标准的基础上，具有较强的实用性和通用性。文章还对目前XML的查询语言进行了讨论，确定将扩展的XML－QL作为配合XIDM的查询语言。

Integrating of File Systems and Multidatabase Systems Based on XML

Integration between file systems and multidatabase systems is a necessary approach to support data sharing from distributed and heterogeneous data sources. Based on analyzing the problem about integration between file systems and multidatabase systems, the paper proposes use XML (eXtensible Markup Language) to integrating file systems into multidatabase systems. A common data model named XIDM, which is oriented to XML Schema, is presented in this paper. Because XIDM bases on a series of XML standards and can well describe semistructured data, it is powerful practicable and multipurpose. The paper discusses current query languages for XML and then determines to expand XML QL as query language.